Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 162, Issue 7, Pages A1310-A1314Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0771507jes
Keywords
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Funding
- EPSRC [EP/K029290/1]
- University of Glasgow
- Dana and David Domsife College of Letters and Sciences at the University of Southern California
- German Academic Exchange Service (DAAD)
- Villum Foundation Postdoc Program
- Laboratory Directed Research and Development (LDRD) Program at Brookhaven National Laboratory by US Department of Energy Office of Basic Energy Sciences [12-007, DE-AC02-98CH10886]
- Engineering and Physical Sciences Research Council [EP/K029290/1, EP/N001982/1] Funding Source: researchfish
- EPSRC [EP/N001982/1] Funding Source: UKRI
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We report the use of X-ray diffraction in combination with computed tomography to provide quantitative information of a coin cell Li-ion battery and a commercial Ni/MH AAA battery for the first time. This technique allows for structural information to be garnered and opens up the possibility of tracking nanostructural changes in operandi. In the case of the cylindrically wound, standard AAA Ni/MH cell, we were able to map all the different phases in the complex geometry, including anode, cathode, current collector and casing, as well as amorphous phases such as the binder and separator. In the case of a Li-ion coin cell battery, we show how the X-ray diffraction tomography data can be used to map crystal texture of the LiCoO2 particles over the cathode film. Our results reveal that the LiCoO2. microparticles show a high degree of preferred orientation, but that this effect is not homogenous over the film, which may affect the electrochemical properties. (C) The Author(s) 2015. Published by ECS. All rights reserved.
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